LearnCTEM.com, Best CTEM Learning Platform
CVE Intelligence Hub

CVE-2026-129102: Cudy TR3000 Security Vulnerability

CVE-2026-129102 explained: high Security Vulnerability in Cudy TR3000. CVSS 8.6. Affected versions, detection, fixes and CTEM priority.

Last updated: Nov 13, 2026

CVSS
8.6 HIGH
EPSS
n/a
CISA KEV
Not listed
CWE
CWE-93

Sources: National Vulnerability Database, CVE.org, CISA KEV, FIRST EPSS

CVE-2026-129102 Overview

Cudy TR3000 before 2.5.42 contains a command injection vulnerability that allows authenticated administrators to execute commands as root by injecting newlines into the IPsec keyexchange field of the vpn.set_conf RPC method. Attackers can append a second leftupdown directive to ipsec.conf, which StrongSwan's updown plugin runs as root when an attacker-controlled peer establishes the CHILD_SA.

Critical Impact

Remote, authenticated attackers can exploit this Security Vulnerability in Cudy TR3000. The CVSS base score is 8.6 (High).

Affected Products

  • Cudy TR3000: see the vendor advisory for the exact affected versions

Discovery Timeline

  • 2026-11-13: CVE-2026-129102 published to the National Vulnerability Database by disclosure@vulncheck.com
  • 2026-11-13: last updated in the NVD database

Technical Details for CVE-2026-129102

Vulnerability Analysis

CVE-2026-129102 is a Security Vulnerability weakness (CWE-93) in Cudy TR3000. Based on its CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction.

With a CVSS base score of 8.6, apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Root Cause

The vendor description states: Cudy TR3000 before 2.5.42 contains a command injection vulnerability that allows authenticated administrators to execute commands as root by injecting newlines into the IPsec keyexchange field of the vpn.set_conf RPC method. Attackers can append a second leftupdown directive to ipsec.conf, which StrongSwan's updown plugin runs as root when an attacker-controlled peer establishes the CHILD_SA.

Attack Vector

Based on the CVSS vector, the flaw can be reached over the network, needs some level of access, and needs no user interaction. Attack complexity is low complexity.

No exploitation in the wild is confirmed by CISA at the time of the last update. Check the references below for any vendor or researcher proof of concept.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Detection Methods for CVE-2026-129102

Detection Strategies

  • Inventory every instance of Cudy TR3000 and compare the running version with the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Run an authenticated vulnerability scan once your scanner ships a check for this CVE.

Monitoring Recommendations

  • Forward Cudy TR3000 application, access and audit logs to your SIEM for retrospective hunting.
  • Alert on new processes, configuration changes or outbound connections from the affected service.
  • Track the vendor advisory and the CISA KEV catalog for changes in exploitation status.

How to Mitigate CVE-2026-129102

Immediate Actions Required

  • Apply the fixed version of Cudy TR3000 named in the vendor advisory.
  • Prioritize internet facing and business critical instances first.
  • Rescan after the change to confirm the exposure is closed.

Patch Information

Use the fixed version listed in the vendor advisory for Cudy TR3000.

Workarounds

  • If patching must wait, restrict network access to the affected service and place it behind authentication or a web application firewall rule.

CWE References

Technical References

This entry is built directly from NVD, CISA KEV and EPSS data. Verify fixed versions in the vendor advisory before you deploy.

Frequently asked questions

CVE-2026-129102 is a high severity Security Vulnerability in Cudy TR3000 with a CVSS score of 8.6. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Related CVEs

CRITICAL10.0
CVE-2026-121353
Adobe Connect

Adobe Connect is affected by an Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue does not require user interaction. Scope is changed.

Nov 10, 2026
CRITICAL9.3
CVE-2026-34458
Sandboxie-Plus Sandboxie

Sandboxie-Plus is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, an INI injection vulnerability allows any standard local user to bypass configuration restrictions (EditAdminOnly and ConfigPassword) and inject arbitrary directives into the global Sandboxie.ini configuration file. The background service skips authorization checks for IPC messages targeting sections beginning with UserSettings_, but does not sanitize CRLF characters in either the value parameter (via MSGID_SBIE_INI_ADD_SETTING) or the setting name parameter (via MSGID_SBIE_INI_SET_SETTING). An attacker can inject a new sandbox section header with unrestricted permissions, enabling sandbox escape and SYSTEM privilege escalation. This issue has been fixed in version 1.17.3.

May 5, 2026
CRITICAL9.2
CVE-2026-29046
Ritlabs Tinyweb

TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.04, TinyWeb accepts request header values and later maps them into CGI environment variables (HTTP_*). The parser did not strictly reject dangerous control characters in header lines and header values, including CR, LF, and NUL, and did not consistently defend against encoded forms such as %0d, %0a, and %00. This can enable header value confusion across parser boundaries and may create unsafe data in the CGI execution context. This issue has been patched in version 2.04.

Mar 6, 2026
HIGH8.7
CVE-2026-39849
Pi-Hole Ftldns

Pi-hole FTL is the core engine of the Pi-hole network-level advertisement and tracker blocker. In versions before 6.6.1, the `dns.interface` configuration field in Pi-hole FTL accepted newline characters without validation, allowing an attacker to inject arbitrary directives into the generated dnsmasq configuration file. On installations with no admin password set (the default for many deployments), the configuration API is fully accessible without credentials, allowing a network-adjacent attacker to inject the payload, enable the built-in DHCP server, and achieve arbitrary command execution on the host the next time any device on the network requests a DHCP lease. The injected value is persisted to /etc/pihole/pihole.toml and survives restarts. The strncpy in the code path limits the total interface field to 31 bytes, but payloads such as wlan0\ndhcp-script=/tmp/p fit within this constraint. The dnsmasq config validation introduced in FTL 6.6 only checks syntactic validity, so valid directives injected via newline pass validation successfully. This issue has been fixed in version 6.6.1.

May 5, 2026
HIGH8.6
CVE-2026-116231
Oray Pugongying X5 Pro

A security flaw has been discovered in Oray Pugongying X5 Pro 7.6.1. The impacted element is an unknown function of the component Ser2net. Performing a manipulation of the argument regmsg results in crlf injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Oct 26, 2026
HIGH8.6
CVE-2026-116232
Oray Pugongying X5 Pro

A weakness has been identified in Oray Pugongying X5 Pro 7.6.1. This affects the function snmp_set of the component SNMP Handler. Executing a manipulation of the argument info.community can lead to crlf injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Oct 26, 2026
Your next credential

Earn your free CTEM certification.

Learn to scope, prioritize, validate and mobilize fixes for CVEs like CVE-2026-129102 with a free CTEM certification.

Free to takePublicly verifiable

Beginner / Practitioner / Program Leader

Explore certifications